Using alien technologies, a military force has swept to power on Mars. This totalitarian regime must be stopped and its robodroid armies destroyed. You are an elite pilot in charge of a VacFighter, an experimental craft equipped with both air-to-air and air-to-ground weapons.

To succesfully complete your mission you will need to master your fighter and its weapons. New weapons, bonuses and surprises will be available as you progress across the Martian battlefields!